Exhaust structure of vehicle

Abstract

An exhaust structure of a vehicle is provided that can ensure an arrangement space for a mounted component below a floor panel and prevent thermal damage to the mounted component by reducing sizes of an engine and an exhaust silencer. An exhaust structure of a vehicle includes: an engine disposed in an engine bay formed in a front part of a vehicle; a silencer that reduces noise of exhaust gas from the engine and discharges the exhaust gas outside; an exhaust pipe that couples the engine and the silencer; and a battery unit disposed behind the engine and below a floor panel, the silencer being disposed between the engine and the battery unit.

What is claimed is: 
     
       1. An exhaust structure of a vehicle comprising:
 an engine disposed in an engine bay formed in a front part of the vehicle; 
 an exhaust silencer that reduces noise of exhaust gas from the engine and discharges the exhaust gas outside; 
 an exhaust pipe that couples the engine and the exhaust silencer; and 
 a mounted component disposed behind the engine and below a floor panel, wherein the exhaust silencer is disposed between the engine and the mounted component, 
 a drive motor that drives wheels and a generator driven by the engine are provided in the engine bay, 
 the wheels are driven only by the drive motor, and 
 the mounted component is a battery that can store power supplied from the generator and supply the stored power to the drive motor. 
 
     
     
       2. The exhaust structure of the vehicle according to  claim 1 , wherein the engine is operated under a preset specific operating condition. 
     
     
       3. The exhaust structure of the vehicle according to  claim 1 , wherein a heat shield wall is provided between the exhaust silencer and the mounted component. 
     
     
       4. The exhaust structure of the vehicle according to  claim 3 , wherein a width of the heat shield wall in a vehicle width direction is equal to or larger than a width of the mounted component in the vehicle width direction. 
     
     
       5. The exhaust structure of the vehicle according to  claim 1 , wherein
 the exhaust silencer is disposed in a middle position in a vehicle width direction and includes a tail pipe, and 
 the tail pipe extends to a vicinity of one end in the vehicle width direction, and an outlet of the tail pipe is provided at the vicinity of the one end in the vehicle width direction. 
 
     
     
       6. The exhaust structure of the vehicle according to  claim 5 , wherein
 a heat shield wall is provided between the exhaust silencer and the mounted component, and 
 lower ends of the exhaust silencer and the tail pipe are disposed above a lower end of the heat shield wall. 
 
     
     
       7. An exhaust structure of a vehicle comprising:
 an engine disposed in an engine bay formed in a front part of the vehicle; 
 an exhaust silencer that reduces noise of exhaust gas from the engine and discharges the exhaust gas outside; 
 an exhaust pipe that couples the engine and the exhaust silencer; and 
 a mounted component disposed behind the engine and below a floor panel, wherein 
 the exhaust silencer is disposed between the engine and the mounted component, and 
 a heat shield wall is provided between the exhaust silencer and the mounted component. 
 
     
     
       8. The exhaust structure of the vehicle according to  claim 7 , wherein a width of the heat shield wall in a vehicle width direction is equal to or larger than a width of the mounted component in the vehicle width direction. 
     
     
       9. The exhaust structure of the vehicle according to  claim 7 , wherein
 the exhaust silencer is disposed in a middle position in a vehicle width direction and includes a tail pipe, and 
 the tail pipe extends to a vicinity of one end in the vehicle width direction, and an outlet of the tail pipe is provided at the vicinity of the one end in the vehicle width direction. 
 
     
     
       10. The exhaust structure of the vehicle according to  claim 9 , wherein
 lower ends of the exhaust silencer and the tail pipe are disposed above a lower end of the heat shield wall. 
 
     
     
       11. An exhaust structure of a vehicle comprising:
 an engine disposed in an engine bay formed in a front part of the vehicle; 
 an exhaust silencer that reduces noise of exhaust gas from the engine and discharges the exhaust gas outside; 
 an exhaust pipe that couples the engine and the exhaust silencer; and 
 a mounted component disposed behind the engine and below a floor panel, wherein 
 the exhaust silencer is disposed between the engine and the mounted component, 
 the exhaust silencer is disposed in a middle position in a vehicle width direction and includes a tail pipe, 
 the tail pipe extends to a vicinity of one end in the vehicle width direction, and an outlet of the tail pipe is provided at the vicinity of the one end in the vehicle width direction, 
 a heat shield wall is provided between the exhaust silencer and the mounted component, and 
 lower ends of the exhaust silencer and the tail pipe are disposed above a lower end of the heat shield wall.